if+present simple+present simple
PRIMER:
If I promise to do something, I do it.
if+Present simple+wil
PRIMER:
If I study today, I will go the party tonight.
2.SECOND CONDITIONAL
if+past simple+would
PRIMER:
If I won the lottery, I would buy a big house.
3.THIRD CONDITIONAL
if+past perfect+ would have+p.p
Primer: #
If she had studied, she would have passed the exam.